a = 0
b = 1
c = 2

# 1. and: 与: 都真才真
print(a < b and c > b)
print(a > b and c > b)


# 2. or: 或: 一真则真，都假才假
print((a < b) or (c > b))
print(a > c or c > b)

# 3. not: 非: 取反
print(not False)

print(not c > b)